i posted this question yesterday and got no responses. i just had a clean exam, ekg, and echo. i notice this vibrating/light buzzing feeling when i am relaxing. if i touch my chest/heart area i feel nothing. its comes and goes, doesnt hurt. it also goes under my left arm too near the armpit. i did just start lifting again and am a very anxious person. any ideas or suggestions would be fantastic and i would greatly appreciate it!!!